TY  - BOOK
AU  - United Nations Environment Programme
ED  - United Nations Environment Programme
TI  - Guidelines:  Development of national parks and protected   
T2  - United Nations Environment Programme publication
U1  - U8, N2/UN 
PY  - 1992///
CY  - Madrid
PB  - World Tourism Oragnisation        
KW  - Travel Expedition
ER  -